Start with the business problem, not a list of screens. Who will use it day to day, how often, and what does the process look like without it? An estimator who knows what you are trying to achieve often proposes a simpler way to reach it; one who only sees the requirements as given prices the list as written.
Set out the scope as short scenarios: who does what, and software development agency what happens next. Just as important, write down what you are not building. An explicit exclusion list removes more disagreement later than the rest of the brief combined. Mark too which decisions are settled and which are still under discussion — honest teams price those differently, and concealing the open questions helps no one.
List the constraints. These include the platforms and services involved, difference between laravel and wordpress existing databases and their quality, compliance requirements, user volumes, target platforms and stacks you cannot change. Where a date is genuinely fixed, say why: an experienced team can often rearrange the plan to meet it, but not if the date is a secret.
Say what completion means feature by feature. Testable acceptance criteria do not require special syntax: a plain-language note describing what must be true when the feature works is enough. That one addition shortens the sign-off process considerably and removes the usual argument at handover.
To close, say what you expect back. Request a breakdown by feature or module, a written list of assumptions, the risks the team sees and a range rather than a single figure. Read a wide range as useful information rather than evasion: it normally identifies the part of the brief that needs work. Then rewrite that part and ask ecommerce solution for edtech industry a new estimate — the revised figure will be far closer to reality.